CC1100E_14 Datasheet, PDF (11/95 Pages) Texas Instruments – Low-Power Sub-GHz RF Transceiver

CC1100E
TA = 25C, VDD = 3.0 V if nothing else stated. All measurement results are obtained using the CC1100E EM reference designs
([3] and[4])
955 MHz, 38.4 kBaud data rate, sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0
(GFSK with BT=1, 1% packet error rate, 20 bytes packet length, 20 kHz deviation, 100 kHz digital channel filter bandwidth)
Receiver
sensitivity
-104
dBm
Sensitivity can be traded for current consumption by
setting MDMCFG2.DEM_DCFILT_OFF=1. The typical
current consumption is then reduced from 18.3mA to
17.7 mA at sensitivity limit.
Saturation
-18
dBm FIFOTHR.CLOSE_IN_RX=0. See more in DN010
[11]
Adjacent channel
12
rejection
dB
Desired channel 3 dB above the sensitivity limit. 200
kHz channel spacing
Alternate channel
27
rejection
dB
Desired channel 3 dB above the sensitivity limit. 200
kHz channel spacing
See Figure 3 for plot of selectivity versus frequency
offset
Image channel
23
rejection,
955 MHz
dB
IF frequency 152 kHz
Desired channel 3 dB above the sensitivity limit
Parameter
Min Typ Max Unit Condition/Note
955 MHz, 76.8 kBaud data rate, sensitivity optimized, MDMCFG2.DEM_DCFILT_OFF=0
(GFSK with BT=1, 1% packet error rate, 20 bytes packet length, 32 kHz deviation, 232 kHz digital channel filter bandwidth)
Receiver sensitivity
-100
dBm
Sensitivity can be traded for current consumption by setting
MDMCFG2.DEM_DCFILT_OFF=1. The typical current
consumption is then reduced from 18.6mA to 16.8 mA at
sensitivity limit.
Blocking
Blocking at ±2 MHz offset,
-49
dBm Desired channel 3 dB above the sensitivity limit
1.2 kBaud, 955 MHz
Blocking at ±2 MHz offset,
-49
dBm Desired channel 3 dB above the sensitivity limit
38.4 kBaud, 955 MHz
Blocking at ±10 MHz
offset, 1.2 kBaud, 955
MHz
-39
dBm Desired channel 3 dB above the sensitivity limit
Blocking at ±10 MHz
offset, 38.4 kBaud, 955
MHz
-40
dBm Desired channel 3 dB above the sensitivity limit
General
Spurious Emmissions
RX latency
-38 dBm 25 MHz – 1 GHz
Excluding the 470-510 MHz band, signal at 960 MHz, 2^nd
harmonicAbove 1 GHz
-32 dBm
Typical radiated spurious emission is -49 dBm measured at
the VCO frequency
Data above is for the 470-510 MHz band, for spurious
emmisions at 950-960 MHz, look at section 28.
9
Bit
Serial operation. Time from start of reception until data is
available on the receiver data output pin is equal to 9 bits.
Table 6: RF Receive Section
SWRS082
Page 11 of 92